NIH
up 2 from 56 on 27 May 2026
Embed your badge ↗NIH scores 58 out of 100 on the a14y v0.3.0-draft scorecard. The scan checked a single page, and 58% of the applicable checks passed. The site publishes an XML sitemap; llms.txt, AGENTS.md, and a markdown sitemap are absent.
Site checks · 4/8 passed
Evaluated once against the site's origin: discoverability surfaces like
llms.txt, AGENTS.md, and sitemap signals.
- FAIL llms-txt.exists No llms.txt or llms-full.txt found at /, /.well-known/, or /docs/
- PASS robots-txt.exists https://www.nih.gov/robots.txt
- PASS robots-txt.allows-ai-bots Allowed: GPTBot, ClaudeBot, CCBot, Google-Extended
- PASS robots-txt.allows-llms-txt
- PASS sitemap-xml.exists https://www.nih.gov/sitemap.xml
- FAIL sitemap-xml.valid sitemap.xml did not parse as urlset/sitemapindex
- FAIL sitemap-md.exists sitemap.md not reachable
- FAIL agents-md.exists No agent skill file found
Pages · 1
Single page audited: https://www.nih.gov/.
- PASS http.status-200 200
- PASS http.redirect-chain 0 hops
- PASS http.content-type-html text/html; charset=utf-8
- PASS http.no-noindex-noai no x-robots-tag
- PASS html.canonical-link https://www.nih.gov/
- PASS html.meta-description 379 chars
- FAIL html.og-title missing
- PASS html.og-description
- PASS html.lang-attribute en
- FAIL html.json-ld no parseable JSON-LD found
- PASS html.headings 7 headings
- FAIL html.text-ratio 8.1%
- FAIL html.glossary-link no glossary/terminology link
- FAIL markdown.mirror-suffix no .md/.mdx mirror found
- FAIL markdown.alternate-link no <link rel="alternate" type="text/markdown">
- FAIL markdown.content-negotiation text/html; charset=utf-8
- PASS html.ssr-content 562 words in initial HTML
- PASS http.no-interstitial